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1. 发明专利

JP2011101399A Image display device 有权
标题翻译：图像显示设备
公开(公告)号：JP2011101399A
公开(公告)日：2011-05-19
申请号：JP2010285287
申请日：2010-12-22
申请人： Hitachi Advanced Digital Inc , Hitachi Ltd , 株式会社日立アドバンストデジタル , 株式会社日立製作所
发明人： SAEKI YUKIMI , TSUKAHARA MASAHISA , WATANABE TOSHIMITSU , YOSHIZAWA KAZUHIKO
IPC分类号： H04N5/445 , G09G5/00 , G09G5/02 , G09G5/10 , H04N7/173
摘要： PROBLEM TO BE SOLVED: To provide a high-definition display device which controls superimposed signals of PI signals and SI signals in accordance with the surroundings. SOLUTION: In the high-definition display device, in which mixed radio waves of PI signals and SI signals are demodulated, decoded, chroma-processed and displayed on a display, a changeover switch 13 connected to an image quality adjusting circuit part of a video/chroma processing circuit 7 is opened/closed by an ON/OFF signal S 1 showing a superimposing term of both the signals detected by a decoder 4, and when the ON/OFF signal S 1 is ON, the changeover switch 13 is closed, thereby disabling image quality adjustment. Therefore, an SI indication is not erased by image quality adjustment and can also be adjusted in accordance with the surrounding situation. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种根据周围环境来控制PI信号和SI信号的叠加信号的高分辨率显示装置。解决方案：在将PI信号和SI信号的混合无线电波解调，解码，色度处理并显示在显示器上的高清晰度显示装置中，连接到图像质量调节电路部分的转换开关13 视频/色度处理电路7由表示由解码器4检测的两个信号的叠加项的ON / OFF信号S SB 1打开/关闭，并且当ON / OFF信号S < SB> 1 为ON，切换开关13闭合，从而禁止图像质量调整。因此，图像质量调整不会消除SI指示，也可以根据周围情况进行调整。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2007235999A Video display device 有权
标题翻译：视频显示设备
公开(公告)号：JP2007235999A
公开(公告)日：2007-09-13
申请号：JP2007144356
申请日：2007-05-31
申请人： Hitachi Advanced Digital Inc , Hitachi Ltd , 株式会社日立アドバンストデジタル , 株式会社日立製作所
发明人： SAEKI YUKIMI , TSUKAHARA MASAHISA , WATANABE TOSHIMITSU , YOSHIZAWA KAZUHIKO
IPC分类号： H04N5/44 , H04N5/445
摘要： PROBLEM TO BE SOLVED: To provide a high-definition display device for controlling a superimpose signal of a PI signal and an SI signal in accordance with the surroundings.
SOLUTION: In a high-definition display device wherein a mixed radio wave of a PI signal and an SI signal is demodulated, decoded and displayed after chroma processing, a changeover switch 13 connected to an image quality adjusting circuit part of a video chroma processing circuit 7 is opened/closed by an ON/OFF signal S
1 indicating a period of superimposing both the signals detected by a decoder 4 and when the ON/OFF signal S
1 is ON, the changeover switch 13 is opened so that image quality adjustment may be disabled. Therefore, an SI indication does not disappear because of image quality adjustment and can also be adjusted in accordance with the surrounding situation.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于根据周围环境控制PI信号和SI信号的叠加信号的高清晰度显示装置。解决方案：在色差处理之后解调，解码和显示PI信号和SI信号的混合电波的高分辨率显示装置中，连接到视频的图像质量调整电路部分的转换开关13 色度处理电路7通过指示由解码器4检测到的两个信号叠加的周期的ON / OFF信号S 1 打开/关闭，并且当ON / OFF信号S 1 < SB>为ON，切换开关13被打开，从而可以禁止图像质量调整。因此，由于图像质量调整，SI指示不消失，也可以根据周围情况进行调整。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2003289483A High definition display apparatus and high definition display method 有权
标题翻译：高定义显示设备和高定义显示方法
公开(公告)号：JP2003289483A
公开(公告)日：2003-10-10
申请号：JP2003123139
申请日：2003-04-28
申请人： Hitachi Advanced Digital Inc , Hitachi Ltd , 株式会社日立アドバンストデジタル , 株式会社日立製作所
发明人： SAEKI YUKIMI , TSUKAHARA MASAHISA , WATANABE TOSHIMITSU , YOSHIZAWA KAZUHIKO
IPC分类号： H04N5/44
摘要： PROBLEM TO BE SOLVED: To provide a high definition display apparatus for controlling a superimposing signal between PI (Picture Information) and SI (Service Information) signals depending on a surrounding state. SOLUTION: In the high definition display apparatus for demodulating, decoding, chroma-processing and displaying a mixed radio wave of the PI and SI signals, an ON/OFF signal S 1 denoting a superimposing period of both the signals detected by a decoder 4 switches a changeover switch 13 connected to an image quality adjustment circuit section of a video/chroma processing circuit 7, the changeover switch 13 is open when the ON/OFF signal S 1 is an ON signal so as to disable adjustment of the image quality. Thus, no SI indication is lost by the image quality adjustment and the superimposed signal can be also adjusted depending on the surrounding state. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于根据周围状态来控制PI（图像信息）和SI（服务信息）信号之间的叠加信号的高清晰度显示装置。解决方案：在用于对PI和SI信号的混合电波进行解调，解码，色度处理和显示的高清晰度显示装置中，表示叠加周期的ON / OFF信号S 1 由解码器4检测到的两个信号切换连接到视频/色度处理电路7的图像质量调节电路部分的切换开关13，当ON / OFF信号S 1时，切换开关13断开， SB>是ON信号，以禁止图像质量的调整。因此，图像质量调整不会丢失SI指示，并且也可以根据周围状态来调整叠加信号。版权所有（C）2004，JPO

4. 发明专利

JP2007011284A Image display device and driving method therefor 有权
标题翻译：图像显示装置及其驱动方法
公开(公告)号：JP2007011284A
公开(公告)日：2007-01-18
申请号：JP2006081757
申请日：2006-03-23
申请人： Hitachi Displays Ltd , Hitachi Ltd , 株式会社日立ディスプレイズ , 株式会社日立製作所
发明人： NITTA HIROYUKI , TSUKAHARA MASAHISA , OZAKI TOSHIBUMI
IPC分类号： G09G3/22 , G09G3/20
CPC分类号： G09G3/22 , G09G2310/0267
摘要： PROBLEM TO BE SOLVED: To provide an low-cost image display device by achieving scanning electrode application voltage waveform and operation stability of a circuit, without overshoots, and achieving miniaturization of the switch element size and suppressing LSI cost.
SOLUTION: The image display device comprises a scanning selection switch 2, provided to cope with a plurality of scanning wiring, a non-selection switch 9 for making the scanning wiring a non-selection state, a feedback switch 1 for detecting potential of a scanning electrode, and a negative feedback amplifier 7 for making scanning electrode potential a prescribed potential Vs at each scanning electrode, on the basis of the scanning electrode potential detected by the feedback switch 1. A time constant, comprising a composed capacity 3 composing the capacity of the feedback switch 1 and the wiring capacity and a resistor Ron2 of the feedback switch 1, is set smaller than the time constant, comprising a composed capacity composing the capacity of the scanning selection switch 2 and the capacity Cp of a display panel and a resistor Ron1 of the scanning selection switch 2.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过实现扫描电极施加电压波形和电路的操作稳定性而不产生过冲，并且实现开关元件尺寸的小型化并且抑制LSI成本，来提供低成本的图像显示装置。解决方案：图像显示装置包括扫描选择开关2，用于处理多个扫描布线，用于使扫描布线成为非选择状态的非选择开关9，用于检测电位的反馈开关1 以及负反馈放大器7，用于根据由反馈开关1检测的扫描电极电位使扫描电极电位在每个扫描电极处具有规定电位Vs。时间常数包括构成容量3 将反馈开关1的容量和布线容量以及反馈开关1的电阻器Ron2设定为小于包括构成扫描选择开关2的容量的组成容量和显示面板的容量Cp的时间常数和扫描选择开关2的电阻Ron1。（C）2007，JPO＆INPIT

5. 发明专利

JP2013198343A Power converter unit and power converter using the same 有权
标题翻译：电源转换器单元和功率转换器
公开(公告)号：JP2013198343A
公开(公告)日：2013-09-30
申请号：JP2012064856
申请日：2012-03-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKURAMORI FUSAO , TSUKAHARA MASAHISA , NAKATSUKA YASUHIRO
IPC分类号： H02M1/08
摘要： PROBLEM TO BE SOLVED: To provide a power converter unit capable of being used as a small and highly efficient power supply unit and to provide a power converter using the same.SOLUTION: The power converter unit includes a conversion circuit formed from a semiconductor switch and a capacitor; a driver of a semiconductor switch and a control circuit of the semiconductor switch, and the conversion circuit is connected with an output terminal. With such a configuration, an output of a flux power converter that obtains electric power using a magnetic flux generated by an electric current running between the conversion circuit and the output terminal is used as power supplies of the driver and the control circuit.
摘要翻译：要解决的问题：提供一种功率转换器单元，其能够用作小型且高效的电源单元，并提供使用其的功率转换器。解决方案：功率转换器单元包括由半导体开关和电容器半导体开关的驱动器和半导体开关的控制电路，并且转换电路与输出端子连接。通过这样的结构，利用由在转换电路和输出端子之间运行的电流产生的磁通来获得电力的磁通量变换器的输出被用作驱动器和控制电路的电源。

6. 发明专利

JP2008185625A Plasma display device and its driving method 审中-公开
标题翻译：等离子体显示装置及其驱动方法
公开(公告)号：JP2008185625A
公开(公告)日：2008-08-14
申请号：JP2007016609
申请日：2007-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OKI HIDEAKI , ONOZAWA MAKOTO , TSUKAHARA MASAHISA , IMURA HISAFUMI
IPC分类号： G09G3/288 , G09G3/20 , G09G3/291 , G09G3/294 , G09G3/296 , G09G3/298 , H04N5/66
CPC分类号： G09G3/2965 , G09G3/294 , G09G3/2942
摘要： PROBLEM TO BE SOLVED: To provide a method of controlling a plasma display device simple in control by having a small number of circuit elements, and having a short voltage frequency.
SOLUTION: The method of controlling the plasma display device has: a first step (t4) for turning on a second switch means (CD1) and a third switch means (CU2) by turning off a first switch means (CU1) and a fourth switch means (CD2); a second step for turning off the second to the fourth switch means by turning on the first switch means after the first step; and a third step (t2) for turning off the second and third switch means by turning on the first and fourth switch means after the second step.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过具有少量电路元件并且具有短电压频率来控制简单控制的等离子体显示装置的方法。解决方案：控制等离子体显示装置的方法具有：通过关闭第一开关装置（CU1）和第二开关装置（CU1）来接通第二开关装置（CD1）和第三开关装置（CU2）的第一步骤（t4）第四开关装置（CD2）; 第二步骤，通过在第一步骤之后接通第一开关装置来关闭第二至第四开关装置; 以及第三步骤（t2），用于在第二步骤之后接通第一和第四开关装置来关闭第二和第三开关装置。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008139566A Image display device 审中-公开
标题翻译：图像显示设备
公开(公告)号：JP2008139566A
公开(公告)日：2008-06-19
申请号：JP2006325728
申请日：2006-12-01
申请人： Hitachi Displays Ltd , Hitachi Ltd , 株式会社日立ディスプレイズ , 株式会社日立製作所
发明人： OZAKI TOSHIBUMI , TSUKAHARA MASAHISA
IPC分类号： G09G3/22 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To provide an image display device which is free from image quality deterioration and is high in reliability by suppressing the occurrence of smear, even if there arises a secular change in the V-1 property of an electronic source. SOLUTION: In order to detect a scanning line current, the scanning line current in black display and the scanning line current in medium contrast or white display are detected by a current detection circuit 40 and the detection data 21 are subjected to differential operation by a differential operator 1. On the basis of the differential data 8 from the differential operator 1, a voltage drop correction circuit 6 calculates the corrected amount of the scanning electrode voltage and the data electrode voltage and the scanning electrode voltage and the data electrode voltage are corrected and thereby the image display device is attained which can deal with the secular change of the electronic source and is high in reliability and in image quality. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了提供一种图像显示装置，其不受图像质量恶化，并且通过抑制涂片的发生而具有高的可靠性，即使电子源的V-1属性出现长期变化。解决方案：为了检测扫描线电流，由电流检测电路40检测黑色显示中的扫描线电流和中等对比度或白色显示中的扫描线电流，检测数据21进行差分运算基于差分运算器1的差分数据8，电压降校正电路6计算扫描电极电压和数据电极电压以及扫描电极电压和数据电极电压的校正量被校正，从而可以获得能够处理电子源的长期变化并且图像质量可靠性高的图像显示装置。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2008139561A Image display device 审中-公开
标题翻译：图像显示设备
公开(公告)号：JP2008139561A
公开(公告)日：2008-06-19
申请号：JP2006325685
申请日：2006-12-01
申请人： Hitachi Displays Ltd , Hitachi Ltd , 株式会社日立ディスプレイズ , 株式会社日立製作所
发明人： OZAKI TOSHIBUMI , TSUKAHARA MASAHISA , HARUNA FUMIO , SATO JUNICHI , WATANABE TOSHIMITSU
IPC分类号： G09G3/22 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To prevent a luminance change by providing the element current meeting image data even if an electron emission element changes with lapse of time, and also to prevent a smear from changing with lapse of time by keeping constant the voltage drop generated by the current flow in a scanning line.
SOLUTION: A scanning line current is detected by a detection resistor 1 and current detection data 8 are obtained by an adder/subtractor 5 and an A/Z converter 2. The current detection data 8 are input to a voltage correction circuit 6, which operates the correction amount of the scanning selection voltage and the data voltage and outputs a correction signal 10. A scanning voltage correction circuit 16 performs correction of the scanning selection voltage by using the correction signal 10. Also, the voltage correction circuit 6 generates data electrode driving data 11 from the current detection data 8 and the image data 207 and inputs the data to a data electrode driving circuit 7.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了通过提供即使电子发射元件随时间变化而提供满足图像数据的元件电流来防止亮度变化，并且还通过保持恒定的电压来防止涂片随时间变化由扫描线中的当前流产生的下降。解决方案：扫描线电流由检测电阻1检测，电流检测数据8由加法器/减法器5和A / Z转换器2获得。电流检测数据8被输入到电压校正电路6 其操作扫描选择电压和数据电压的校正量并输出校正信号10.扫描电压校正电路16通过使用校正信号10执行扫描选择电压的校正。此外，电压校正电路6产生来自当前检测数据8的数据电极驱动数据11和图像数据207，并将该数据输入到数据电极驱动电路7.版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2006301413A Image display device and its driving method 审中-公开
标题翻译：图像显示装置及其驱动方法
公开(公告)号：JP2006301413A
公开(公告)日：2006-11-02
申请号：JP2005125103
申请日：2005-04-22
申请人： Hitachi Displays Ltd , Hitachi Ltd , 株式会社日立ディスプレイズ , 株式会社日立製作所
发明人： NITTA HIROYUKI , TSUKAHARA MASAHISA , OZAKI TOSHIBUMI
IPC分类号： G09G3/22 , G02F1/133 , G09G3/20
CPC分类号： G09G3/22 , G09G2310/0267 , G09G2320/0223
摘要： PROBLEM TO BE SOLVED: To provide a driving circuit which generates a scanning electrode application voltage free of overshooting in a display arranged with electronic emission elements in a matrix.
SOLUTION: A scanning electrode potential 32 detected by a feedback switch 11 is inputted to a reverse phase input terminal of an amplifier 7 and a reference selection potential 30 from a reference selection signal potential generating circuit 1 is inputted to a positive phase input terminal of the amplifier 7. The reference selection potential signal generating circuit 1 outputs the signal delayed in the reference potential of a reference voltage source 13.
COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2013169088A Power converter, dc substation, dc power transmission system and control method of power converter 有权
标题翻译：电力转换器，直流基站，直流电力传输系统和电力转换器的控制方法
公开(公告)号：JP2013169088A
公开(公告)日：2013-08-29
申请号：JP2012031235
申请日：2012-02-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KATO SHUJI , ITO NAOTO , TSUKAHARA MASAHISA , OCHI KENTARO , INOUE SHIGENORI , SAKURAMORI FUSAO , IGARASHI DAISUKE
IPC分类号： H02M7/48 , H01L25/11
CPC分类号： H01L2924/0002 , H02M1/32 , H02M2007/4835 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To suppress and prevent blowout of a conductor wire and arc generation, by reducing a current flowing from a DC capacitor into an IGBT leg upon short circuit of a semiconductor leg.SOLUTION: In the power converter having an arm configured of one or a plurality of unit converters in cascade connection, the unit converter has a main circuit of chopper configuration where semiconductor legs are connected with a DC capacitor. At least some semiconductor legs have a semiconductor module, and a pressure thyristor is connected in parallel with the DC capacitor. Inductance (LS) of a discharge path from the DC capacitor via the pressure thyristor is small and satisfies the following conditions, so that a current having a current rise rate higher than the current rise rate tolerance of the pressure thyristor can be fed when the pressure thyristor is turned on. LS
摘要翻译：要解决的问题：通过在半导体支脚短路时减少从直流电容器流向IGBT支脚的电流来抑制和防止导线的发生和电弧产生。解决方案：在具有臂的电力转换器由一个或多个串联连接的单元转换器，单元转换器具有斩波器配置的主电路，其中半导体支路与直流电容器连接。至少一些半导体支架具有半导体模块，并且压力晶闸管与直流电容器并联连接。通过压力晶闸管的来自直流电容器的放电路径的电感（LS）小，满足以下条件，从而当压力可控硅的电压上升速率高于压力晶闸管的电流上升速率容限时，可以馈送电流晶闸管导通。 LS <直流电容器额定电压/电流上升速率公差的压力可控硅。

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